Document that the handshake_failure alert message is also...

net/socket/ssl_client_socket_win.cc

 // Copyright (c) 2006-2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/socket/ssl_client_socket_win.h"
 
 #include <schnlsp.h>
 
 #include "base/compiler_specific.h"
 #include "base/lock.h"
@@ skipping 30 matching lines @@
       return ERR_CERT_DATE_INVALID;
     case CRYPT_E_NO_REVOCATION_CHECK:
       return ERR_CERT_NO_REVOCATION_MECHANISM;
     case CRYPT_E_REVOCATION_OFFLINE:
       return ERR_CERT_UNABLE_TO_CHECK_REVOCATION;
     case CRYPT_E_REVOKED:  // Schannel and CryptoAPI
       return ERR_CERT_REVOKED;
     case SEC_E_CERT_UNKNOWN:
     case CERT_E_ROLE:
       return ERR_CERT_INVALID;
-    // We received an unexpected_message or illegal_parameter alert message
-    // from the server.
+    // We received one of the following alert messages from the server:
+    //   handshake_failure
+    //   illegal_parameter
+    //   unexpected_message
     case SEC_E_ILLEGAL_MESSAGE:
       return ERR_SSL_PROTOCOL_ERROR;
     case SEC_E_ALGORITHM_MISMATCH:
       return ERR_SSL_VERSION_OR_CIPHER_MISMATCH;
     case SEC_E_INVALID_HANDLE:
       return ERR_UNEXPECTED;
     case SEC_E_OK:
       return OK;
     default:
       LOG(WARNING) << "Unknown error " << err << " mapped to net::ERR_FAILED";
@@ skipping 1228 matching lines @@
     UpdateConnectionTypeHistograms(CONNECTION_SSL_MD2_CA);
 }
 
 void SSLClientSocketWin::FreeSendBuffer() {
   SECURITY_STATUS status = FreeContextBuffer(send_buffer_.pvBuffer);
   DCHECK(status == SEC_E_OK);
   memset(&send_buffer_, 0, sizeof(send_buffer_));
 }
 
 }  // namespace net